Integers Test - 3

2²×(−3)² ×2²×(−4)²

=4×+9×4×16

=2304

Solving the given expression,

357 × 193 − 357 × 93

= 357 × (193 − 93)

= 357 × 100 = 35700

We can observe that,

2 × 2 = 4 and 4 × 2 = 8

Similarly,

4 × 3 = 12 and 12 × 3 = 36

Hence,

3 × 7 = 3 × 7 × 7 = 147

The multiplication property states that the product of any number and zero is zero. It doesn't matter what the number is, when you multiply it to zero, you get zero as the answer. So: 2 x 0 = 0.

We observe that the product of any whole number and zero is zero. Multiplicative Identity: If a is any whole number, then a × 1 = a = 1 × a. In other words, the product of any whole number and 1 is the number itself.

When we multiply negative integer with −1 because we get a positive quantity when we multiply two negative quantities we get a positive quantity.

Let the number is A.

So, the negative integer = -A

And, square of the integer number = (-A)²

= -A x –A = A² which is a positive number.